Patents by Inventor Duncan Carr

Duncan Carr has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Aqueous composition
    Patent number: 7691234
    Abstract: The present invention relates to an aqueous composition comprising anionic organic polymeric particles and colloidal anionic silica-based particles. The anionic organic polymeric particles are obtainable by polymerizing one or more ethylenically unsaturated monomers together with one or more polyfunctional branching agents and/or polyfunctional crosslinking agents. The anionic organic polymeric particles and the colloidal anionic silica-based particles in the aqueous composition are present in an amount of at least 0.01% by weight based on the total weight of the aqueous composition. The present invention further relates to a method for the preparation of the aqueous composition, uses of the aqueous composition and a process for the production or paper, in which the aqueous composition is added to a cellulosic suspension.
    Type: Grant
    Filed: February 21, 2006
    Date of Patent: April 6, 2010
    Assignee: Akzo Nobel N.V.
    Inventors: Duncan Carr, Michael Sigman
  • Aqueous composition
    Patent number: 7189776
    Abstract: The present invention relates to an aqueous composition comprising anionic organic polymeric particles and colloidal anionic silica-based particles. The anionic organic polymeric particles are obtainable by polymerising one or more ethylenically unsaturated monomers together with one or more polyfunctional branching agents and/or polyfunctional crosslinking agents. The anionic organic polymeric particles and the colloidal anionic silica-based particles in the aqueous composition are present in an amount of at least 0.01% by weight based on the total weight of the aqueous composition. The present invention further relates to a method for the preparation of the aqueous composition, uses of the aqueous composition and a process for the production or paper, in which the aqueous composition is added to a cellulosic suspension.
    Type: Grant
    Filed: June 11, 2002
    Date of Patent: March 13, 2007
    Assignee: Akzo Nobel N.V.
    Inventors: Duncan Carr, Michael Sigman
  • Aqueous composition
    Publication number: 20060142465
    Abstract: The present invention relates to an aqueous composition comprising anionic organic polymeric particles and colloidal anionic silica-based particles. The anionic organic polymeric particles are obtainable by polymerising one or more ethylenically unsaturated monomers together with one or more polyfunctional branching agents and/or polyfunctional crosslinking agents. The anionic organic polymeric particles and the colloidal anionic silica-based particles in the aqueous composition are present in an amount of at least 0.01% by weight based on the total weight of the aqueous composition. The present invention further relates to a method for the preparation of the aqueous composition, uses of the aqueous composition and a process for the production or paper, in which the aqueous composition is added to a cellulosic suspension.
    Type: Application
    Filed: February 21, 2006
    Publication date: June 29, 2006
    Applicant: AKZO NOBEL N.V.
    Inventors: Duncan Carr, Michael Sigman
  • Aqueous composition
    Publication number: 20020198306
    Abstract: The present invention relates to an aqueous composition comprising anionic organic polymeric particles and colloidal anionic silica-based particles. The anionic organic polymeric particles are obtainable by polymerising one or more ethylenically unsaturated monomers together with one or more polyfunctional branching agents and/or polyfunctional crosslinking agents. The anionic organic polymeric particles and the colloidal anionic silica-based particles in the aqueous composition are present in an amount of at least 0.01% by weight based on the total weight of the aqueous composition. The present invention further relates to a method for the preparation of the aqueous composition, uses of the aqueous composition and a process for the production or paper, in which the aqueous composition is added to a cellulosic suspension.
    Type: Application
    Filed: June 11, 2002
    Publication date: December 26, 2002
    Inventors: Duncan Carr, Michael Sigman
  • Method and system for automatically performing an operation on multiple computer systems within a cluster
    Patent number: 5946463
    Abstract: A method and system for automatically performing one or more operations on multiple computer systems within a cluster are disclosed. In accordance with the present invention, a begin operations command construct is defined within an input file. In addition, an input command indicating one or more operations to be performed on at least two computer systems within the cluster and an end operations command construct are defined. In response to a selected input, one or more operations indicated by the input command are automatically performed on at least two computer systems. In accordance with one embodiment, the begin operations command construct indicates selected computer systems within the cluster on which the one or more operations are to be performed and whether the operations are to be performed on the selected computer systems serially or in parallel.
    Type: Grant
    Filed: July 22, 1996
    Date of Patent: August 31, 1999
    Assignee: International Business Machines Corporation
    Inventors: Alexander Duncan Carr, Jeffrey Michael Dangel, Michael Nelson Galassi, Kevin Forress Rodgers, Emy Ying-Mei Tseng, Thomas Van Weaver